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TI-2026-30064 Aliases CVE-2026-41476

Deskflow: clipboard deserialization global-buffer-overflow

Priority HIGH 68CWE-120Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-120 and the CVSS impact.

Summary

Deskflow is a keyboard and mouse sharing app. Prior to 1.26.0.138, a remote memory-safety vulnerability in Deskflow's clipboard deserialization allows a connected peer to trigger an out-of-bounds read by sending a malformed clipboard update. The issue is in the implementation of src/lib/deskflow/IClipboard.cpp. This is reachable because ClipboardChunk::assemble() in src/lib/deskflow/ClipboardChunk.cpp validates only the outer clipboard transfer size. It does not validate the internal structure of the serialized clipboard blob, so malformed inner lengths reach IClipboard::unmarshall() unchanged. This vulnerability is fixed in 1.26.0.138.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00344 28th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed deskflow (deskflow): 1.26.0.138

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
deskflowdeskflowbefore 1.26.0.1381.26.0.138Patch availableCNA
  • deskflow Vendordeskflow Affected before 1.26.0.138 Fixed in 1.26.0.138 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:deskflow:deskflow:*:*:*:*:*:*:*:*before 1.26.0.138Vulnerabledeskflow
  • cpe:2.3:a:deskflow:deskflow:*:*:*:*:*:*:*:* Versions before 1.26.0.138 Vulnerable ·deskflow

Remediation

  • Fix · CNA deskflow (deskflow) Fixed in 1.26.0.138

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-41476

References

Exploit 1

  • TI-2026-30065 Deskflow: Local privilege escalation via unauthenticated IPC CVSS 3.1HIGH 7.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences